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    • 11. 发明申请
    • SYSTEM AND METHOD FOR ALLOCATING TRANSMISSION RESOURCES
    • 用于分配传输资源的系统和方法
    • WO2011141874A1
    • 2011-11-17
    • PCT/IB2011/052059
    • 2011-05-10
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, George
    • HAMMARWALL, DavidJÖNGREN, George
    • H04L1/00H04L5/00H04L1/16
    • H04W72/0406H04B7/04H04B7/0413H04B7/0456H04B7/0486H04B7/0669H04L1/003H04L1/0071H04L1/0079H04L1/1664H04L1/1671H04L5/00H04L5/0053H04L5/0057H04L5/0091H04L25/03929H04W72/04H04W72/0413
    • A method for wirelessly transmitting user data and at least a first type of control information using a plurality of transmission layers including encoding bits of a first type of control information to form one or more control codewords and encoding bits of user data to form one or more user data codewords. The method also includes generating a plurality of vector symbols based on the control codewords and the user data codewords. Bach vector symbol includes a plurality of modulation symbols dun are each associated with a transmission layer over which the associated modulation symbol will be transmitted. Generating the plurality of vector symbols includes interleaving bits of the one or more control codewords and bits of the one or more user data codewords so that the first type of control Information is carried in modulation symbols associated with the same transmission layers in ail the vector symbols transmitted during the subframe that carry the first type of control information, The method also includes transmitting the plurality of vector symbols to a receiver over a plurality of transmission layers.
    • 一种用于使用包括第一类型的控制信息的编码比特的多个传输层来无线发送用户数据和至少第一类型的控制信息以形成一个或多个控制码字并且对用户数据的比特进行编码以形成一个或多个 用户数据码字。 该方法还包括基于控制码字和用户数据码字生成多个矢量符号。 巴赫矢量符号包括多个调制符号,每个调制符号与传输层相关联,在该传输层上将传送相关联的调制符号。 产生多个矢量符号包括交织一个或多个控制码字的比特和一个或多个用户数据码字的比特,使得第一类型的控制信息在与矢量符号中相同的传输层相关联的调制符号中携带 在携带第一类型的控制信息的子帧期间发送。该方法还包括通过多个传输层将多个向量符号发送到接收器。
    • 12. 发明申请
    • SYSTEM AND METHOD FOR ALLOCATING TRANSMISSION RESOURCES
    • 用于分配传输资源的系统和方法
    • WO2011135551A1
    • 2011-11-03
    • PCT/IB2011/051911
    • 2011-04-29
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, George
    • HAMMARWALL, DavidJÖNGREN, George
    • H04L1/00H04L5/00H04L1/16
    • H04L5/0042H04L1/003H04L1/0079H04L1/1664H04L1/1671H04L5/0016H04L5/0044H04L5/0053
    • A method for wirelessly transmitting data and control information, using a plurality of transmission layers includes determining a number of bits in one or more user data codewords (122) to be transmitted during a subframe and calculating a number of control vector symbols (124) to allocate to control information during the subframe. The number of control vector symbols (124) is calculated based at feast in part on the number of bits in the one or more user data codewords ( 122) to be transmitted during the subframe and an estimate of the number of vector symbols (124) onto which the one or more user data codewords (122) will be mapped. The estimate of the number of vector symbols (124) depends, at least in part, on the number of control vector symbols (124) to be allocated to control, information. The method also includes mapping one or more control codewords (120) to the calculated number of control vector symbols (124) and transmitting the user data vector symbols (124) and the control vector symbols (124) over a plurality of transmission layers during the subframe.
    • 一种用于使用多个传输层无线传输数据和控制信息的方法包括确定要在子帧期间发送的一个或多个用户数据码字(122)中的比特数,并且计算多个控制向量符号(124)至 在子帧期间分配控制信息。 基于在子帧期间要发送的一个或多个用户数据码字(122)中的位数,以及矢量符号(124)的数量的估计,计算控制向量符号(124)的数量, 一个或多个用户数据码字(122)将被映射到其上。 至少部分地取决于要分配给控制信息的控制向量符号(124)的数量,矢量符号(124)的数量的估计。 该方法还包括将一个或多个控制码字(120)映射到所计算的控制向量符号(124)的数量,并且在该多个传输层期间在多个传输层上传送用户数据向量符号(124)和控制向量符号(124) 子。
    • 14. 发明申请
    • METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM
    • 电信系统中的方法和安排
    • WO2009098578A2
    • 2009-08-13
    • PCT/IB2009/000205
    • 2009-02-04
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, GeorgeASTELY, DavidLUNDEVALL, Per, Magnus
    • HAMMARWALL, DavidJÖNGREN, GeorgeASTELY, DavidLUNDEVALL, Per, Magnus
    • H04B17/00
    • H04B17/345
    • A receiving unit or a transmitting unit of a wireless network for facilitating noise and interference measurements on an air interface. The receiving unit includes a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid. The receiving unit includes an electronic memory having code in communication with the network interface which stores the information. The receiving unit includes a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel. In the transmitting unit, the processing unit takes the presence of a silent RE grid into account in the transmission of a control or a data channel. A method in the receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface. The method includes the steps of obtaining information relating to a time-varying layout of a silent resource element (RE) grid. There is the step of taking a presence of a silent RE grid into account in the reception of a control or a data channel.
    • 无线网络的接收单元或发射单元,用于促进空中接口上的噪声和干扰测量。 接收单元包括网络接口,该网络接口获得与无声资源元素(RE)网格的时变布局有关的信息。 接收单元包括具有与存储信息的网络接口通信的代码的电子存储器。 接收单元包括与电子存储器通信的处理单元,其在接收控制或数据信道时考虑无声RE网格的存在。 在发送单元中,处理单元在控制或数据信道的传输中考虑无声RE网格的存在。 在无线网络的接收单元或发射单元中的方法,用于促进空中接口上的噪声和干扰测量。 该方法包括获得与无声资源元素(RE)网格的时变布局有关的信息的步骤。 在接收控制或数据通道时考虑无声RE网格的存在。
    • 16. 发明申请
    • PRECODER CODEBOOKS FOR EFFECTIVE CHANNELS WITH STRUCTURED FREQUENCY-SELECTIVITY
    • 具有结构化频率选择性的有效通道的预编码器
    • WO2011123008A1
    • 2011-10-06
    • PCT/SE2010/051343
    • 2010-12-06
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, George
    • HAMMARWALL, DavidJÖNGREN, George
    • H04B7/04H04B7/06
    • H04B7/0626H04B7/0417H04B7/065
    • A precoder for an effective channel linking a wireless receiver to a wireless transmitter includes a precoder report and a precoder update report, the effective channel including a propagation channel, transmit filters and receive filters. A structured frequency-selectivity of the effective channel is determined, the structured frequency-selectivity being induced by one or more long term and/or persistent parameters of the effective channel. The precoder update report is generated based on the structured frequency-selectivity. The precoder update report includes frequency-dependent phase compensation which accounts for the structured frequency-selectivity. The precoder report is generated for the effective channel based on channel state information determined for the effective channel. The precoder report and the precoder update report are transmitted to the wireless transmitter. The transmitter determines a transmission operation based on the precoder report and the precoder update report, and transmits data to the wireless receiver in accordance with the transmission operation.
    • 将无线接收机与无线发射机连接的有效信道的预编码器包括预编码器报告和预编码器更新报告,有效信道包括传播信道,发射滤波器和接收滤波器。 确定有效信道的结构化频率选择性,结构化频率选择性由有效信道的一个或多个长期和/或持久参数引起。 基于结构化频率选择性生成预编码器更新报告。 预编码器更新报告包括考虑结构化频率选择性的频率相位相位补偿。 基于为有效信道确定的信道状态信息,为有效信道生成预编码器报告。 预编码器报告和预编码器更新报告被发送到无线发射机。 发射机根据预编码器报告和预编码器更新报告确定传输操作,并根据传输操作向无线接收机发送数据。
    • 18. 发明申请
    • COMPENSATION FOR PROPAGATION DELAY IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中传播延迟的补偿
    • WO2009131521A1
    • 2009-10-29
    • PCT/SE2009/050223
    • 2009-02-27
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, George
    • HAMMARWALL, DavidJÖNGREN, George
    • H04B17/00H04B7/04H01Q3/26H01Q1/24
    • H04B7/04H01Q1/246H01Q3/2682H04B17/364
    • In a first aspect the present invention relates to a method of compensating for propagation delay in a wireless communication system. A first base station is in communication with a first plurality of antenna units which are adapted to be in wireless communication with a first terminal. The first terminal having a terminal antenna. The first plurality of antenna units is spatially separated. The method according to the first aspect comprises the steps of determining relative propagation delay from each of the first plurality of antenna units to the terminal antenna and using the determined propagation delay to establish a delay profile to compensate for propagation delay from each of the antenna units to the first terminal and applying the delay profile to a transmission between the base station and the terminal. In a second aspect the present invention further relates to a system implementing the method according to the first aspect.
    • 在第一方面,本发明涉及一种在无线通信系统中补偿传播延迟的方法。 第一基站与适于与第一终端进行无线通信的第一多个天线单元通信。 第一终端具有终端天线。 第一多个天线单元在空间上分离。 根据第一方面的方法包括以下步骤:确定从第一多个天线单元中的每一个到终端天线的相对传播延迟,并且使用确定的传播延迟来建立延迟分布以补偿来自每个天线单元的传播延迟 并且将延迟分布应用于基站和终端之间的传输。 在第二方面,本发明还涉及实现根据第一方面的方法的系统。
    • 19. 发明申请
    • METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的方法和布置
    • WO2012044236A1
    • 2012-04-05
    • PCT/SE2011/051144
    • 2011-09-26
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidBERGMAN, SvanteJÖNGREN, George
    • HAMMARWALL, DavidBERGMAN, SvanteJÖNGREN, George
    • H04B7/06
    • H04B7/0486H04B7/0619H04B7/063
    • The invention relates to methods and arrangements for rank adaptation for transmissions over a multipie-input-muttipie-output, M1MO, channel in a wireless communications system. A receiving node (270) performs (310) measurements on reference signals received from a sending node (200), The receiving node performs (330a( 330b) a first feedback computation for a first rank and at least one second feedback computation for at yeast one second rank based on the measurements. The first feedback computation includes applying a first relation between assumed transmitted energy for data and transmitted energy for the reference signals that is specific to the first rank. A second relation between assumed transmitted energy for data and transmitted energy for the reference signals is specific to the at least one second rank. The receiving node selects (340) one rank based on the feedback computations and indicates (350) the selected rank in a feedback report to the sending node.
    • 本发明涉及用于在无线通信系统中通过多路输入多输出,M1MO,信道进行传输的秩调整的方法和装置。 接收节点(270)对从发送节点(200)接收的参考信号执行(310)测量。接收节点对酵母进行第一等级的第一反馈计算和至少一个第二反馈计算 第一反馈计算包括应用假设的数据发射能量与针对第一等级特定的参考信号的发射能量之间的第一关系,数据和发射能量的假设发射能量之间的第二个关系 所述参考信号特定于所述至少一个第二等级,所述接收节点基于所述反馈计算选择(340)一个等级,并且向所述发送节点指示(350)所述反馈报告中的所选等级。
    • 20. 发明申请
    • SYSTEM AND METHOD FOR ALLOCATING TRANSMISSION RESOURCES
    • 用于分配传输资源的系统和方法
    • WO2011161624A1
    • 2011-12-29
    • PCT/IB2011/052720
    • 2011-06-21
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, George
    • HAMMARWALL, DavidJÖNGREN, George
    • H04L1/00H04L5/00H04L1/16
    • H04W72/042H04L1/003H04L1/0079H04L1/1664H04L1/1671H04W72/0466
    • A method for wirelessly transmitting data and control information using a plurality of transmission layers includes determining a number of bits in one or more user data codewords (122) to be transmitted during a subframe and calculating, for each of M control signals to be transmitted during the subframe, a value (Q') based at least in part, on the number of bits in the one or more user data codewords (122), and an estimated number of user data vector symbols (124) onto which the one or more user data codewords (122) will be mapped. The estimate of the number of user data vector symbols (124) for a particular one of the M control signals depends, at least in part, on a number of control vector symbols (124) to be allocated to one or more others of the M control signals. The method also includes determining a number of control vector symbols (124) onto which to map each of the M control signals based on a respective value Q' calculated for that control signal, mapping the control signals for that control signal, and transmitting the control vector symbols.
    • 一种用于使用多个传输层无线传输数据和控制信息的方法包括确定在子帧期间要发送的一个或多个用户数据码字(122)中的比特数,并且针对将要发送的每个M个控制信号 所述子帧,至少部分地基于所述一个或多个用户数据码字(122)中的比特数的值(Q')和所述一个或多个用户数据向量符号(124)的估计数量 用户数据码字(122)将被映射。 用于M个控制信号中的特定一个的用户数据向量符号(124)的数量的估计至少部分地取决于要被分配给M的一个或多个的控制向量符号(124)的数量 控制信号。 该方法还包括:基于针对该控制信号计算的相应值Q'来确定控制向量符号(124)的数量以映射每个M个控制信号,映射用于该控制信号的控制信号,以及发送该控制信号 矢量符号。